Shillelagh
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| Shillelagh | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 8 | ||||||||
| Bounding box | 5 × 3 | ||||||||
| Frequency class | 13.7 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Charles Corderman Hugh Thompson | ||||||||
| Year of discovery | 1971 | ||||||||
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Shillelagh is an 8-cell still life discovered by Charles Corderman and Hugh Thompson in 1971.[1][2]
Commonness
Shillelagh is the eighteenth most common still life in Achim Flammenkamp's census, being less common than long ship but more common than integral sign.[3] It is also the twenty-sixth most common object on Adam P. Goucher's Catagolue.[4]
Glider synthesis
All strict still lifes with a population of 22 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 31 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
- ↑ Robert Wainwright (June 1971). Lifeline, vol 2.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
External links
- Shillelagh at the Life Lexicon
- The 9 eight-bit still-lifes at Mark D. Niemiec's Life Page
Categories:
- Patterns
- Patterns with Catagolue frequency class 13
- Natural periodic objects
- Periodic objects with minimum population 8
- Patterns with 8 cells
- Patterns found by Charles Corderman
- Patterns found by Hugh Thompson
- Patterns found in 1971
- Patterns that can be constructed with 4 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 8 cells
- Diagonal line stabilisations